Juan does not have a cent but lives beautifully. His nights of revelry and cabaret are famous in the night city environments. As heir to his old and very rich uncle Don Patricio, lives subsidized by creditors on account of his future inheritance. But John keeps a terrible secret: he has long been disinherited. When a telegram arrives announcing the death of the uncle, Juan returns to the family home in the Costa Brava. There he meets Anna, a wonderful woman who is the current heir to the family fortune.
| Directing | Pedro Lazaga Sabater | Director |
| Writing | Noel Clarasó | Writer |
| Writing | José Luis Dibildos | Writer |
| Production | José Luis Dibildos | Line Producer |
| Production | Jesús Franco | Delegated Producer |
| Sound | Antón García Abril | Music |
| Camera | Manuel Merino | Director of Photography |
| Editing | Alfonso Santacana | Editor |
| Art | Francisco Canet | Production Design |
| Art | Hugo Donarelli | Art Direction |
| Art | Francisco Canet | Set Decoration |
| Costume & Make-Up | Manolita G. Fraile | Assistant Makeup Artist |
| Costume & Make-Up | Adolfo Ponte | Key Makeup Artist |
| Production | Ricardo Sanz | Production Manager |
| Directing | Francisco Yllera | Assistant Director |
| Art | Rafael Cuevas | Property Master |
| Sound | Federico de la Cuesta | Sound Engineer |
| Sound | Hugo Donarelli | Sound Director |
| Camera | Ángel Ampuero | Camera Operator |
| Camera | Hans Burmann | Assistant Camera |
| Camera | Federico Gómez Grau | Still Photographer |
| Costume & Make-Up | Goya García | Costumer |
| Editing | Alicia Castillo | Assistant Editor |
| Directing | Fernando Merino | Script Supervisor |
| Production | Fernando Somoza | Production Assistant |